Paper-guide for printing-presses.



E. C. SEYMOUR.

PAPER GUIDE PoE PRINTING PRESSES.

APPLICATION FILED DEG.19, 19.12.

1,098,058, Patented May 26, 1914.

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EDWARD C. SEYMOUR, OF DETROIT, MICHIGAN.

PAPER-GUIDE FOR PRINTING-PRESSES.

Application filed December 19, 1912.

To all whom it may concern:

Be it known that I, EDWARD C'. SEYMOUR,

a citizen of the United States of America,v

residing at Detroit, in the county of Wayne and State of Michigan, haveinvented certain new and useful Improvements in Paper- Guides forPrinting-Presses, of which the following' is a specification, referencebeing had therein to the accompanying drawings.

In printing presses of the type wherein the sheets are caughtby gripperson a gripper roll and carried the-roby into contact with the member,either platen or roll, that gives the impression, guides are used whicharrest the paper in exact position for being proper y picked up by thegrippers. These guides are so disposed as to be accurately adjusted fora set of grippe-rs in order to secure proper registration of the sheet.l

Ordinarily it has been customary to employ one set of grippers on ro-lland one set of guides therewith so that onesheet only is picked up bythe gripper roll in one revolution. If the sheet occupies less thanone-half of the roll the remainder of `the roll is not utilized andconsequently the capacity of the press is limited to the speed ofrevolution of the gripper roll.

This invention relates to guides for printing presses which are arrangedfor adjustment with one set of grippers and are likewise so disposed asto automatically read-` just themselves into proper relation to a secondset of grippers so that a gripper roll may carry two sheets during eachrevolution into contact with the imprinting member.

rThe invention consists in the matters hereinafter set forth and more`particularly pointed out in the appended claims.

In the drawings, Figure 1 is a view, partially in end elevation andpartially in section, of a gripper roll of a printing press providedwith guides that embody features of the invention; and Fig. 2 is a viewin detail in perspective showing the arrangement of one of the stops inrelation to the grippers.

Referring to the drawings, a gripper roll l that is mounted in suitablebearings and in proper relation to a feed table indicated at 2 isprovided with a set of grippers shown at 3 that project in the usualmanner from the roll surface and are actuated by any suitable mechanismto grasp marginal portions 4 of a sheet that is moved down the feedtable 2, and thereby carry the same Speecaton of Letters Patent.

Patented May 26, 1914. Serial No. 737,601.

around with the roll. The roll itself' and .the gripper do not per Seform a part of this invention and therefore are not shown in detail.

A rock shaft 5 in parallel relation to the roll axis is oscillated twiceduring each revolution of the roll by means of a rock arm 6 anldplungeis 7 that is supported by a cam ro 8 traveling on a cam plate 9that turns with the ioll, the cam having diametrically oppositedepressions indicated at l0 and 11. lVhen the cam roll 8 is traveling onthe periphery of the plate 9 it swings the rock arm into such a positionthat a depending guide l2 that is adjustably secured thereon as a collar13 and a studlt, clears the periphery of the roll but when the roll 8 drops into a depression 11 the guide 12 enters a. slot 16 in t-he gripperroll and intercepts or forms a stop for the marginal portion 4 of thesheet until the latter has been picked up by the gripper after which thecam roll again swings the guide clear of the roll.

lVhen the cam roller 8 drops into the second depression 10 thereby againthrowing the guide 12 into the path of another sheet for bringing thesame into register with a second pair of grippers, a plate 17 that ispivot-ed on the guide and which is normally held by a spring linger 18against a guide lug 19,' is moved into the exact relation desired withthe second pair of grippers by contact with an adjustable stop 20. Thelatter is preferably in the form of a set screw with binding thumb nut21 thereon, and is carried on the outer end of a lever 22 which extendsfrom a rock rod 23. The poition of the latter is controlled by anysuitable means whereby the stop 2O may be moved into the path of andintercept an ear 24; on the plate 17. As herein indicated this may be arock arm 25 that is oscillated by a spring-returned tappet rod 26 withfriction roll 27 traveling on a Cain-plate 28 that moves in timedrelation to the cam plate 9. The end view of Fig. l, shows only one ofthe two or more guides with which the roll is equipped. It is'to beunderstood that a guide which isa companion to that shown in F ig. 2, ismounted on the shaft 5 to cooperate with the grippers at the other endof the gripper roll 1. As a result of this construction each guide maybe accurately adjusted for use with the companion grippers of one set onthe roll and then may be moved into proper operative relation to thecorresponding grippers of a second set by proper positioning of themovable stops. The construction thus affords tivo independentadjustments for each guide, one for each set of grippers, and enablesthe operator to arrange a press that is equipped with such guides togive tivo impressions to one revolution of the gripper roll, therebygreatly increasing the capacity of the machine.

One feature of the arrangement is the accuracy With which the guides maybe set so that a very large sheet of paper may be brought into properregistration With one set of grippers and a second sheetmay likewise bebrought into the proper relation to the second set. lt has been foundimpossible in practice hitherto to overcome the variations in the presswhich prevent the placing of the tivo sets of grippers in thedianetrical opposition and this device enables the pressman to gage theguides Without relation to the relative position of the two sets ofgrippers. Furthermore as each guide is capable of independent adjustmentit is possible, when one maro'inal portion of the sheet is found to bein register, to vary the adjustment to bring the other marginal portioninto correct register, an arrangement that is necessary in handling veryWide sheets.

Obviously, changes in the details of construction may be made Withoutdeparting from the spirit of my invention and I do not care to limitmyself to any particular form or arrangement of parts.

l. The combination with a gripper roll, sets of grippers thereon and atable for feeding sheets to the roll and grippers, of a guide for thesheets, means for moving the guide into the path of the sheets to arrestthe latter in timed relation to the movement of the sets of grippers, amovable plate on said guide that is normally in register with one set ofgrippers to arrest a sheet for the grippers, a stop for said guideadapted t-o shift the movable plate into operative regisg j'ter with agripper of another set, and

means for oscillating the stop to shift the plates in timed relation tothe movements of the roll and gripper sets.

2. The conbination of a gripper roll having sets of grippers thereon anda feed table for supplying sheets to the grippers, with a rock shaft, acam, mechanism operated by the cam and adapted to oscillate the rockshaft in timed relation to the movement of the gripper sets, a guidecarried by the rock shaft and moved thereby into the paths of sheets ofpaper to arrest the latter in timed relation to the movement of thegripper sets, means adjustably securing the guide to the shaft inregistration with one set of grippers, a yieldingly movable member onsaid guide, a stop adapted to shift the position of a guide member Whenmoved into abutment therewith, into registration with another set ofgrippers, and nechanism for moving the stop to act upon the member intimed re lation to the movement of another set of grippers. y

in testimony whereof l aiix my signature in presence of two Witnesses.

EDH/TARD C. SEYMOUR.

liVitnesses C. R. STICKNEY, A. M. Donn.

Copies of this patent may be obtained for ve cents each, by addressingthe Commissioner of Patents, Washington, D. G.

